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Finding the Fourth Proportional to 274,840.02, 379,253.73 and 155,608.02

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Solution

The fourth proportional to 274,840.02, 379,253.73 and 155,608.02 is: 214,724.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,840.02 : 379,253.73 = 155,608.02 : x
  2. Step 2: Convert to fraction form
    274,840.02/379,253.73 = 155,608.02/x
  3. Step 3: Cross multiply
    274,840.02x = 379,253.73 × 155,608.02
  4. Step 4: Simplify right side
    274,840.02x = 59,014,922,002.91
  5. Step 5: Solve for x
    x = 59,014,922,002.91/274,840.02
  6. Step 6: Final answer
    x = 214,724.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.